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What's a MIB?

A MIB (Management Information Base) is a structured document that defines the data a device exposes over SNMP — things like interface counters, system uptime, or CPU load. Each module declares a set of named objects, organized into a tree.

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SNMP (Simple Network Management Protocol) is how network devices — routers, switches, servers — report status and statistics to monitoring tools. It's the protocol; MIBs are the vocabulary it uses to describe what's being asked for.

What's an OID?

An OID (Object Identifier) is the numeric address of one piece of data in a MIB — a dotted sequence like 1.3.6.1.2.1.1.1, read from the root of a global tree down to one specific object. Names are easier to read; OIDs are what's actually sent over the wire.

Try it: sysDescr (1.3.6.1.2.1.1.1) →

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HH3C-ETH-TRAP-MIB

9 objects

This MIB file defines the ETH trap warning feature only.

Imported Objects

HH3C-OID-MIB	hh3cCommon
SNMPv2-SMI	MODULE-IDENTITY NOTIFICATION-TYPE OBJECT-TYPE Unsigned32
SNMPv2-TC	DisplayString MacAddress

OID	Name	Access	Status	Description
1.3.6.1.4.1.25506.2.262	Identityhh3cEthTrap			This MIB file defines the ETH trap warning feature only.
1.3.6.1.4.1.25506.2.262.1	Nodehh3cEthTrapMlag
1.3.6.1.4.1.25506.2.262.1.0	Nodehh3cEthTrapsMlag
1.3.6.1.4.1.25506.2.262.1.0.1	Notificationhh3cEthTrapMlagSetDrvFailed		current	ETH m-lag failed to add the MAC address.
1.3.6.1.4.1.25506.2.262.1.1	Nodehh3cEthTrapMlagObjects
1.3.6.1.4.1.25506.2.262.1.1.1	Scalarhh3cEthTrapMlagSetDrvChassis	accessible-for-notify	current	The information of chassis ID. If the value is 65535, the device is not a stacked device.
1.3.6.1.4.1.25506.2.262.1.1.2	Scalarhh3cEthTrapMlagSetDrvSlot	accessible-for-notify	current	The information of slot.
1.3.6.1.4.1.25506.2.262.1.1.3	Scalarhh3cEthTrapMlagSetDrvIfName	accessible-for-notify	current	The information of interface name.
1.3.6.1.4.1.25506.2.262.1.1.4	Scalarhh3cEthTrapMlagSetDrvMacAddress	accessible-for-notify	current	The information of mac address.